This flat gasket seals the timing cover to the engine block, preventing oil leakage from the front of the engine. It sits between the timing cover and the cylinder block, containing the lubricant that supplies the timing chain or gear train. A failed gasket results in oil seepage at the cover joint, which can lead to low oil pressure and contamination of the belt or chain area. This component is manufactured to the original geometry, matching the sealing surface profile of the housing so no additional sealant is required during installation. When reinstalling the timing cover, clean both mating surfaces and torque the cover bolts to specification.